What is CVE-2021-4320?

CVE-2021-4320 is a high-severity vulnerability in Google Chrome, classified under Use After Free. CVSS score: 8.8/10. Published 2023-07-29.

How severe is CVE-2021-4320?

High severity. CVSS v3 base score is 8.8 out of 10.

Use After Free in Google Chrome

CVE-2021-4320

Use after free in Blink in Google Chrome prior to 92.0.4515.107 allowed a remote attacker who had compromised the renderer process to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Use-After-Free

EPSS: 0.005 (42.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Google Chrome — versions 92.0.4515.107

Weakness classification (CWE)

CWE-416 — Use After Free

References

chrome-cve-admin@google.com (Release Notes, Vendor Advisory)
chrome-cve-admin@google.com (Exploit, Issue Tracking, Vendor Advisory)
chrome-cve-admin@google.com

Frequently asked questions

What is CVE-2021-4320?: CVE-2021-4320 is a high-severity vulnerability in Google Chrome, classified under Use After Free. CVSS score: 8.8/10. Published 2023-07-29.
How severe is CVE-2021-4320?: High severity. CVSS v3 base score is 8.8 out of 10.